baber/WOPTO huggingface dataset:
Patent GB-1043114-A (GB)
Title: Resonator for radiation generated by stimulated emission
IPC: H01S3/08
Filed: 1964-02-27
Abstract: 1,043,114. Lasers. INTERNATIONAL BUSINESS MACHINES CORPORATION. Feb. 27, 1964 [March 6, 1963], No. 8143/64. Heading H3B. The effect of non-axial modes in a laser is reduced by positioning a convex reflector between a converging lens, located in the path of radiation emitted from the laser active medium, and the focal point of the lens. As shown in Fig. 3, a circular cross-section ruby rod 13 is pumped by a flash lamp (not shown) and non-axial radiation in the direction 33 for example, after refraction by lens 29, is reflected from the spherical surface of the mirror 30 at a greater angle than that angle which would have resulted had the radiation been reflected by a plane surface. By widening the angle the radiation is passed through the active medium only a small number of times before being rejected from the system at 35 so that there is left no off-axial radiation 37 in the output beam and a larger percentage of the population of excited atoms in the active medium is used for production of axial radiation. Fig. 4 shows the manner in which the axial mode of radiation is developed, the output beam being taken from mirror 10. In the arrangement of Fig. 5 the intensity of the output beam 39 is modulated by making a portion 41 of the reflecting sphere 30 non- reflective so that when shaft 43, on which the sphere is mounted, is rotated the sphere 30 periodically interrupts the reflection of radiation back into the active medium 13. During the period of non-reflection the intensity of the output beam 39 is reduced or cut off depending upon how non-reflective the portion 41 is and how fast the sphere 30 is rotated.
Patent GB-435121-A (GB)
Title: Improvements in knitting machines or mechanism and articles produced thereby
IPC: D04B9/46
Filed: 1934-03-15
Abstract: 435,121. Hosiery. HOSIERY DEVELOPMENTS, Ltd., 30, Park Row, and MILLS, R. K., 3, Edwards Lane, Sherwood, both in Nottingham. March 15, 1934, No. 8212. [Class 141] [See also Group VIII] In a seamless hose or similar article having spliced toe and heel pouches 10, 11 and a spliced foot-bottom 13, all knitted by reciprocation, the spliced area 13 is sunk relatively to the areas 10, 11.
Patent GB-996091-A (GB)
Title: Improvements in or relating to thermostatically controlled fluid flow valves
Inventor: CASTELLAIN RICHARD MICHAEL
IPC: F16K31/68
Filed: 1963-03-26
Abstract: 996,091. Valves. S. SMITH & SONS (ENGLAND) Ltd. Jan. 24, 1964 [March 1, 1963], No. 8230/63. Heading F2V. In a thermostatic control valve, with manual override, for controlling the flow of hot coolant from an inlet 1 past a valve seating 3 to the heat exchanger of a vehicle fan heater, a temperature responsive device 38 is actuated by expansible fluid in a capillary tube 61, heated by air leaving the vehicle heater, so that a member 39 is displaced therefrom to pivot a lever 28, via manually adjustable interconnecting means, about a fixed pivot 35 against spring 30, to bear upon a spring 27 to seat valve closure 5 via a bracket 22 fixed to the valve stem 6 and displaceable upon a lug 20 fixed to a casing 19. The manually adjustable interconnecting means comprise co-axially sliding flanged cylindrical members 41 and 49 bearing against lever adjusting screw 58 and fixed against rotation by lugs. Respective face cams 42, 55 on the interior faces of flanges 50 and 54 are separated by engagement with a cam ring 43 therebetween as this is rotated by the inner core of a flexible control cable fixed to an arm 46 thereof. With the manually adjustable interconnecting means in the Fig. 3a position, the total possible movement of member 39 is insufficient to close the valve and, in the Fig. 3b position, is insufficient to open the valve.
Patent GB-271828-A (GB)
Title: Process for concentrating raw pyroligneous acid
IPC: C07C51/493
Filed: 1927-03-25
Abstract: 271,828. Holzverkohlungs - Industrie Akt.-Ges. May 25, 1926, [Convention date]. Addition to 271,044. Acids, concentrating and distilling. - In a concentration process according to the parent Specification for dilute volatile aliphatic acids such as raw pyroligneous acid containing alcoholic bodies, the acid is recovered partly in concentrated form and partly in the form of the ester. For example, raw pyroligneous acid containing about 10 per cent acetic acid and 4 per cent methyl alcohol is distilled in the presence or absence of water combining substances such as a bisulphate. sulphuric acid &c. and the vapours brought into contact with the bisulphate preferably in a column resulting in the recovery of the main quantity of the acid in concentrated form and of the ester which is produced: the small quantity of acid remaining in the bisulphate solution may be recovered by esterification with methyl alcohol. The raw acid may be saturated with sodium bisulphate to separate the tarry impurities and heated to promote the esterification.
Patent GB-1056215-A (GB)
Title: Improvements in or relating to slidable sashes
IPC: E05D15/56
Filed: 1965-02-26
Abstract: 1,056,215. Horizontally slidable window sashes; widow fastenings. GRETSCH-UNITAS G.m.b.H. Feb. 26, 1965 [March 18, 1964], No. 8337/65. Headings E1J and E2A. In a horizontally sliding sash window a device for locking the sash in any horizontal position comprises a lifting mechanism for the sash which includes means for positively locking the mechanism in its lifting condition in which the sash is freely slidable. The invention is also applicable to vertically sliding windows. The device comprises an operating drive shaft 4 in a lower corner of the sash which shaft is rotatable through 90 degrees by a cranked handle, not shown, the shaft being coupled eccentrically by a pin 8 and a link 11 to one end of a lifting link 13 pivotally mounted on the trolley 10 which runs on a guide rail by rollers so that by turning the handle and shaft 4 clockwise the pin 8 moves to the right and the pin 9 also carried by the shaft 4 disengages from the slot 15 in the connecting link 11 and allows the link 11 to rotate anticlockwise about its pivot 12 on the link 13, pivoted at 14 in the casing 2, to rotate the lifting link 13 and drop the trolley. The pin 9 may also operate in a slot 15 in a locking plate 20 movable vertically and co-operating with a slot in the main frame in the end position of the sash to lock the sash in this end position and the plate and slot may have co-operating sloping edges 18' to press the sash against the frame with the interposition, if desired of a resilient strip. In a modification the connecting link 11 is connected to the trolley 10 directly and locked in the operative position by a cam on the drive shaft 4, engaging a cam on the link, or by a pin and slot arrangement.
Patent GB-1243423-A (GB)
Title: Sulphur-curable olefinic copolymers and method for producing the same
IPC: C08F210/00
Filed: 1969-02-17
Abstract: 1,243,423. Polymers of norbornene derivatives. SUMITOMO CHEMICAL CO. Ltd. 17 Feb., 1969 [20 Feb., 1968], No. 8384/69. Heading C3P. A sulphur-curable olefinic copolymer consisting essentially of (1) at least one 2-norbornene compound having at the fifth position of the norbornene nucleus a hydrocarbon or halohydrocarbon group containing at least three non- cyclic and non-conjugated carbon-carbon double bonds, and (2) at least one member selected from ethylene and α-olefine having 3 to 20 carbon atoms may be prepared by contacting (1) and (2) with a catalyst derived from an organoaluminium compound and at least one member selected from a vanadium compound and a titanium compound, both the vanadium atom and the titanium atom being at least trivalent. In the examples ethylene, propylene, a 2- norbornene compound having at the fifth position an oligomer (6 or 7 units) of isoprene as side chain and a 5-alkapolyenyl-2-norbornene are copolymerized in the presence of n-heptane hydrogen, ethyl aluminium sesquichloride and vanadyl trichloride. The polymerization was stopped by adding methanol containing #- phenyl-naphthylamine. The terpolymer was vulcanized using #-phenyl-napthylamine, stearic acid, zinc oxide, carbon black, sulphur, tetramethylthiuran sulphide and mercaptobenzothiazole.
Patent GB-820111-A (GB)
Title: Improvements in lipstick and nail varnish or polish
Inventor: KERFOOT HENRY MANNERS
IPC: A61K8/00
Filed: 1955-03-23
Abstract: Lipstick, nail varnish or polish includes, as pigment, a lake of a fluorescent dye precipitated in the presence of synthetic resin, such as those described in Specification 733,856, [Group IV (a)].  The brilliance of the colour is enhanced by the fluorescence in daylight. Examples of compositions of lipstick and nail varnish are given.
Patent GB-635396-A (GB)
Title: Improvements in latch mechanism
IPC: E05B17/00
Filed: 1948-03-23
Abstract: 635,396. Latches. EREBUS MANUFACTUR- - ING CO., Ltd., GLOTHAM, A., and ABNETT, J. March 23, 1948, No. 8479. [Class 44] In a latch mechanism of the kind in which a twohomed follower 6 acts on one arm of a bell-crank lever 5, while the other arm engages the latch bolt 4, or with a runner which draws back the latter, the arm of the lever 5 which is engaged by the follower carries two rollers, 10 11, one engaged by each horn of the follower. As shown, the rollers are journalled on pins joining the main part of the bell-crank lever to a front plate 9 parallel therewith. In the normal position, the rollers are equidistant from the axis of the follower, one arm of which is substantially horizontal, while the other extends upwardly and rearwardly. The inner roller 10 lies on or near the line joining the axes of the lever and the follower.
Patent GB-412529-A (GB)
Title: Improvements in casters for powdered condiments
IPC: A47G19/24
Filed: 1934-03-19
Abstract: 412,529. Condiment holders. BIEGER, U., and BIEGER, A., 38b, Weimarstrasse, Stuttgart, Germany. March 19, 1934, No. 8599. [Class 18.] A device for holding two condiments, e.g., salt and pepper, comprises a receptacle 1, a hollow plunger 2 forming a second receptacle and also forming a closure for the receptacle 1, and means for closing one end of the hollow plunger 2. In one form, Fig. 1, these means comprise a plunger 11 sliding within the hollow plunger 2. Each of the plungers 2, 11 is normally held closed by a spring 4, 13. In the construction shown in Fig. 3, a spindle 23 is rotatable and carries a disc 25 having holes registering with other holes in a disc 21 secured to the end of the hollow plunger. The space within the hollow plunger, in this form, may serve for holding peppercorns, and a grinding wheel rotated by the rod 23 and coacting with a grinding member in the plunger or on the disc 25, may be provided for grinding the peppercorns.
Patent GB-1173713-A (GB)
Title: Mould-Closing Unit of an Injection-Moulding Machine.
IPC: B29C45/68
Filed: 1968-02-22
Abstract: 1,173,713. Injection moulding. ANKERWERK NURNBERG G.m.b.H. 22 Feb., 1968 [18 March, 1967], No. 8662/68. Heading B5A. Mould parts 21, 22 on fixed and movable plates 2 and 7 respectively are brought together and separated by toggle linkages 17, 19 and 18, 20 actuated by a toothed piston 12 moved in one direction or the other in a casing carried by rods 5 by fluid supplied to an inlet 24 or 30. The links 17 and 18 are connected to gears 13 and 14 respectively engaging teeth on opposite sides of the piston. When the piston is moved to the left to close the mould the joint bolts connecting the pairs of links 17, 19 and 18, 20 rest in recesses 25, 26 respectively. An extension 9 of the casing includes a piston 8 slidable in a housing 4, so that with the mould closed a force is applied to the closed mould by the supply of pressure fluid to a chamber 27 via an inlet 28; this pressure is relieved after the injection step. The position of the assembly comprising the plate 7 and casing on the rods 5 can be adjusted for the reception of moulds of different sizes by feeding pressure fluid to inlets 32 or 28.
Patent GB-463757-A (GB)
Title: Improvements in syringes for applying substances such as medicaments and the like to body orifices
IPC: A61M3/00
Filed: 1936-03-24
Abstract: 463,757. Surgical syringes. HYGIENIC TUBE & CONTAINER CO: March 24, 1936, No. 8709. Convention date, July 19, 1935. [Class 81 (ii)] A syringe for injecting liquids, powders, or ointments into the body comprises a barrel 1 of cellulose compound or other transparent material having a smooth bulbous tip 2, preferably of the same internal diameter as the 'barrel and having an internal screw-thread 4 for the attachment of a collapsable tube from which the syringe is filled. The barrel has a closure member 6 carrying a plunger rod 7, a plunger 8 on which is spaced from the end 12 of the rod, to enable the latter to express material from the tip at 4, and is preferably slightly spaced from the barrel to permit escape of air during filling. The Specification as open to inspection under Sect. 91 describes a construction wherein the screw-thread 4 is formed in the barrel itself, the tip 2 being dispensed with. This subjectmatter does not appear in the Specification as accepted.
Patent GB-841309-A (GB)
Title: Improvements in or relating to half hose
Inventor: BALL SAMUEL
IPC: D04B1/26
Filed: 1958-03-19
Abstract: 841,309. Knitting. MORLEY Ltd., I. & R. Aug. 22, 1958 [March 19, 1958], No. 8748/58. Class 74 (2). A sock is formed with a welt, a rib top, a plain knitted heel and toe pocket, a sole part comprising a single layer of rib knitted openwork fabric and a leg and instep of either plain or rib knitting or of rib knitted openwork fabric similar to the sole part. The sock may be knitted on a two-feed superposed cylinder machine and the sole part may be formed by the rib needles remaining inactive in alternate courses so that the yarn floats in the rib wales, as shown in Fig. 3. The leg and instep may be formed in a similar manner to the sole or may be knitted of plain or rib construction.
Patent GB-290243-A (GB)
Title: A mechanical press for the manufacture of bricks, tiles and like articles, in the dry state
IPC: B28B3/02
Filed: 1928-03-22
Abstract: 290,243. Ylla y Conte, J. May 11, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Presses.--In an automatically-acting, constant-pressure, mechanical press for making bricks, tiles, and the like from dry clay, the pressure is applied by a lever 4 weighted at 14 and pivoted at 6 to the oscillatory links 7. The lever is connected to the pressure piston 13 of the mould, and is engaged at intervals by the eccentric 27 to raise it to release the moulded products. Clay is delivered to the hopper 39 and is removed in charges to the moulds by the sliding frame 41 which is reciprocated by the eccentric 47 so as to lie over the mould and under the hopper alternately. A plate 42 closes the hopper when the frame is over the mould. The clay is compressed between the upper movable pistons or rams 22 and lower fixed rams 25, the mould walls 26 sliding upwards on the columns 58 to form the mould space, and downwards to free the moulded article, through the medium of linkage driven from the shaft 65. An ejector 73 fitted with a rubber buffer is operated by linkage from the shaft 80 to push the moulded articles off the rams 25 on to a platform 97 when the mould walls are lowered. The platform 97 moves downwards with the mould walls so as to receive the ejected brick and on the return stroke moves upwards and forwards so as to present it for removal at the front of the machine.
Patent GB-1150984-A (GB)
Title: Magnetic Memories
IPC: G11C11/06
Filed: 1967-02-23
Abstract: 1,150,984. Circuits employing bi-stable magnetic elements. LITTON INDUSTRIES Inc. 23 Feb., 1967 [23 Feb., 1966], No. 8770/67. Heading H3B. In a switching circuit for energizing the word select line of a memory a magnetic core, biased to one remanent state of magnetization, is switched to the opposite state of magnetization to produce a short intense read current pulse and is then switched back to the original state step-by-step to produce a smaller change of flux for writing purposes. Fig. 1 shows a matrix of drive cores 22, 24, 26, 28 for driving a magnetic memory 10, one line only of which is shown and which is driven by core 22 connected to word line 11. Element 22 is biased to point 64 by bias source 32 which is connected to all cores of the switching matrix. When signals from Iy generator 34, and Ix 1 , Ix 2  generators 36, 38, Fig. 6 (not shown), are applied to the switching matrix core 22 is switched to point 60, Fig. 4, thereby inducing a read pulse in word line 11 which read current switches the cores 14, 16, 18 in the memory to the " O " state if not already in that state. An output signal is thus induced in digit/sense line 30a if a " 1 " is stored. After read out a reset pulse 70, Fig. 9F, is delivered to core 18 the amplitude of which is limited by removing current sources 34, 36 so that the operating point only moves from point 60 to point 74. At the end of pulse 70 current source 38 is removed and the operating point returns to point 64 under the control of bias from 32. If as shown there is a short delay between the read and write pulses 62, 70 the current source 34 is removed at the end of pulse 62 to cause the operating point to first move to 80. If a " 1 " is stored then on read out the induced current 82 is used to set a register to its " 1 " state so that during the reset cycle a digit driver, Figs. 7, 8 (not shown), passes an enhancing current 84 to the digit line 30a which in coincidence with pulse 70 rewrites a " 1 " in storage core 18. If the storage core 18 is in its " O " state no current 86 is induced in the digit/sense line 30a and the digit register remains in its " O " state thereby causing the digit driver 30 to deliver an inhibiting pulse 88 in coincidence with reset pulse 70 and keeping core 18 in its " O " state. The invention may be applied to a 3-dimensional matrix system.
Patent GB-602339-A (GB)
Title: Improvements in or relating to pressure control systems
IPC: B64D13/02
Filed: 1945-04-10
Abstract: 602,339. Fluid-pressure servomotor-control systems. WESTLAND AIRCRAFT, Ltd., and WIDGERY, W. M. April 10, 1945, No. 8901. [Class 135] A space pressure-control system as disclosed in Specification 563,553 includes a stop a adjacent to the differential-pressure sensitive capsule unit 19 to limit in one direction the movement of the beam 22 which is acted upon by the two sets of capsule units 17, 19. When the capsules 19 collapse, a lost-motion connection with the beam 22 is provided by a loop d which is carried by the capsules and embraces the beam, the open end of the loop being closed by a pin e. The stop a can be adjusted by means of a screw-thread c and locked in position by a nut b. Specifications 563,553, 602,311, 602,338, 602,340 and 602,343 are referred to.
Patent GB-1364405-A (GB)
Title: Anti-personnel mine
IPC: F42B23/16
Filed: 1973-02-23
Abstract: 1364405 Mines TECHNICAL ARCO ESTABLISHMENT 23 Feb 1973 8910/73 Heading F3A An anti-personnel mine comprises an explosive charge 10, Fig. 1, which is ejected from a bowl 8 by a charge 15 and detonated above the ground. A detonator 13 for the charge 15 is released by means of a detector 1 which is tiltable by pressure exerted on rods c or by the pull of a trip wire b. A line 16, tensioned by the ejection of the explosive charge 10, causes a striker e to rotate into alignment with a detonator 11 as a tooth f, Fig. 2, projecting from a member 12, is drawn along a helical surface g of the moving container 3. Continued upward movement of the container 3 impales the detonator 11 on the striker e. Fragments 9 are contained in the mine. A cover for the bowl 8 is formed with a line of weakness i.
Patent GB-116172-A (GB)
Title: Improvements in or relating to Boat Releasing Mechanism.
IPC: B63B23/58
Filed: 1917-06-21
Abstract: 116,172. Vickers, Ltd., and Torazzi, M. F. June 21, 1917. Boat-disengaging gear. - A boat-releasing mechanism of the type in which the boat is supported by a connexion between the davit ropes which is broken when the tension is taken off both davit ropes, has displaceable retaining members E coupled by a rod F and detachably connected to the davit ropes by flexible members D provided with bell-shaped stop members B. The members D have eyes d adapted to engage pins e' on the members E which slide in guides e. The members D pass round guide-pulleys d<1> and through hawse pipes c on plates adapted to co-operate with the stops B to which the flexible members are connected by pins b'. According to the Provisional Specification, weak springs may be employed to ensure the detachment of the flexible members D.
Patent GB-311877-A (GB)
Title: A process for preserving eggs
IPC: A23B5/06
Filed: 1928-03-24
Abstract: 311,877. Stewart, A. V., and Farma Cream Product Co., Ltd, March 24, 1928. Preserving eggs.-Eggs are preserved by giving them an impervious coating by treatment with a solution containing about 8 per cent of celluloid dissolved in about 92 per cent of monoethyl glycol. The coating may be applied in overlapping sections by dipping or spraying and a colouring matter, which may be of evanescent nature, may be added to the solution to enable uncovered portions to be detected. In another form, the eggs may be caused to roll transversely across a moving table or band so that they pick up the solution either from the surface over which they roll or from pads or brushes located above it, or the solution may be applied by spraying. The eggs may be dried by a current of air. Imperfectly covered eggs are returned for a second treatment.
Patent GB-1003337-A (GB)
Title: Improvements in or relating to fibre-boards
IPC: B27N3/20
Filed: 1963-03-06
Abstract: 1,003,337. Drying fibre-boards. M. HIMMELHEBER. March 6, 1963 [March 7, 1962], No. 9002/63. Heading F4G. The moisture content of fibre-boards introduced while hot between the plates 1 of a multi-layer cold press is controlled by the action of a negative or positive pressure exerted from vacuum producing means and a compressor (not shown) which are respectively connected through bores 2 in the pressing surfaces of the plates and ducts 3, 4, 5 therein. In the central region of the pressing surfaces the bores 2 may be more frequent or larger than at the edges, and the transverse ducts 4 at the front of the plates communicate with a hot steam source, and the compressor while those at the rear to an outlet valve. Communication with the different pressure sources influences the boiling point of the moist fibre-boards so as to control the speed of drying, while connection to the hot steam source, or by the use of high frequency induction heating means (not shown) within the plates may further control the drying rate.
Patent GB-1338119-A (GB)
Title: Plastics thermoforming machine
IPC: B29C51/42
Filed: 1971-04-19
Abstract: 1338119 Sheet forming KOEHRING CO 19 April 1971 [27 Jan 1970] 9058/73 Divided out of 1338117 Heading B5A The subject-matter of this Specification is identical with that of Specification 1,338,117, but the claims are directed to a bearing arrangement for supporting a mould platen on the machine guide rods 46. Each platen has a housing 104 secured thereto and semi-cylindrical slide bearings 106 located therein, so that they can be adjusted with respect to the rods 46 by means of bolts 109, and pins 107a that locate in enlarged holes 108a. A pipe 112 supplies lubricant to the bearings.